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P1831
Schematic:
The Transmission Control Module (TCM) contains two high side drivers to control the power side of the pressure control solenoid and the shift/torque converter clutch solenoids. when the key is in the RUN position, the TCM switches power onto the solenoids. If the TCM detects a continuous Open or Short to Ground in the shift/torque converter clutch solenoids, driver circuit DTC P1831 sets. DTC P1831 is a type A DTC.
DTC PARAMETERS
- DTC P1831 will set if the TCM detects a continuous open or short to ground in the pressure control solenoid driver circuit.
- Engine speed greater than 500 rpm and not at fuel cutoff.
- System voltage between 8 and 18 volts.
- Shift/torque converter clutch driver commanded On.
DIAGNOSTIC AIDS
- The high side drivers are internal to the TCM and cannot be serviced. The only repair possible is to replace the TCM.
- If a pressure control solenoid is set, replace TCM first, then check to see if code resets.